Lillan — girls' name

What the Data Says About Lillan

The Social Security Administration has registered 104 babies named Lillan between 1913 and 2015, spanning 103 consecutive years of U.S. birth records. As a girl's name, Lillan currently falls outside the top 1,000 girls' names for 2015. The name reached its historical peak in 1922, when 9 babies received it in a single year.

Decade-level aggregation shows that Lillan performed strongest in the 1920s, accumulating 35 births during that ten-year window. Across the 5 decades of recorded activity, Lillan shows a clear decline from its mid-century high.

No etymological entry is currently available for Lillan in our reference dataset. These figures derive from SSA's annual national and state-level name files, which include any name appearing at least five times in a given year or state-year; names below that threshold are suppressed for privacy and therefore excluded from the totals shown here. The 104 total represents a lower bound — actual usage may be higher in years or states where the count fell below the disclosure floor. This page is provided for informational and research purposes only and does not constitute personal, legal, or naming advice.